• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:BE1020833A3
    申请号:E201100395
    申请日:2011-06-29
    公开日:2014-06-03
    发明作者:Catherine Bernhardt；Emilie Milon；Dominique Coquet；Olivier Gosset；Laurent Pelsy-Johann；Jean Surmulet；Cecile Boennec；Sophie Bouche；Antoine Fenoglio；Frederic Lecourt
    申请人:Itm Entpr S；
    IPC主号:
    专利说明:

    The invention relates to a device for the provision of envelopes, in particular food bags, with regard to users of such envelopes.
    The envelopes concerned are usually each formed of two thin plastic films, initially applied tightly against each other and intended to be separated from one another by a user to achieve the opening of the envelope. to introduce one or more products.
    Such envelopes are mainly used to form food bags in food stores or supermarkets, including fruits and vegetables.
    They are then conventionally contained in a storage box or other dispenser accessible to users, for example consumers of a store.
    In most cases, the envelope has a generally rectangular shape, three sides of which are closed and the fourth can be opened by spacing the two films to allow the introduction of products into the envelope.
    It may also be envelopes of different shapes, such as gloves or mittens, made available to users in service stations to allow them to use fuel without getting dirty hands.
    In this case, the envelope has a shape different from a rectangle, but it always has a side intended to be opened by spacing the two films that make up this envelope.
    Thus, the term "envelope" is to be considered here in the broad sense without any limitation as to its shape or its outline, provided that it has an opening edge.
    These envelopes are traditionally made of a plastic material of the polyethylene type, and in particular of the high density polyethylene (HDPE) type.
    But, for reasons of environmental protection, these envelopes made of synthetic plastic are increasingly replaced by so-called natural plastic envelopes, that is to say, biodegradable envelopes.
    These latter envelopes are composed mainly of a plant-based plastic material based on starch, for example corn starch, potato, wheat, etc., and a polyester of fossil origin.
    These envelopes are always composed of closed films around the perimeter of the envelope, with the exception of an edge forcing opening.
    The envelopes are most often formed one after the other from two continuous films superimposed to form a roll, the latter being pre-cut at regular intervals to allow each time the separation of an envelope from the roll.
    It is also possible to arrange the envelopes stack and not roll.
    In all cases, the user must, after separating an envelope, move aside the two edges of the envelope that define an opening.
    However, the manufacture of these envelopes implements static electricity, which makes the two films tend to adhere closely against each other by a phenomenon of electric attraction.
    As a result, the end user has difficulty in separating the two films to form the aperture.
    This separation is not easy and, most often, the user must slide the two films between his fingers to allow their spacing.
    So far, no solution has been offered to solve this problem.
    The invention provides a solution to this problem.
    It proposes for this purpose a device for the provision of envelopes, in particular food bags, each formed of two thin films of plastic material, the two films being initially applied closely and intended to be removed one of the another by a user for the opening of the envelope.
    According to the invention, the device comprises a support provided with a friction pad formed of an adherent material having selected adherent properties and having a contact surface against which one of the films of an envelope can be applied and rubbed by a user to facilitate the separation of the two films and the opening of the envelope.
    Without wishing to be bound to a particular theory, it appears that the fact of rubbing temporarily, even for a fraction of a second, one of the films of the envelope against the friction pad allows by a contact effect, of the adherent type, to maintain this film against the friction pad and to facilitate separation and separation of the other film.
    There is thus an adherence effect of the adherent material of the friction pad on one of the films of the envelope, which is similar to a "suction cup" effect, which facilitates the separation of the other film by a simple gesture of the user's hand.
    The device of the invention thus constitutes an equipment or accessory to be implanted in stores, supermarkets, service stations, etc., to facilitate the provision or distribution of envelopes of the aforementioned type to users and consumers.
    The constituent material of the friction buffer is advantageously an elastomer.
    As such, polyurethanes can be used in particular.
    The friction pad is preferably removably attached to the wall of the support, allowing it to be replaced as much as necessary.
    In a preferred embodiment, the friction pad is fixed, for example by gluing, to the wall of the support. This attachment can be made directly or indirectly on the wall of the support. Thus, the friction pad can be fixed, for example by self-adherence, on a self-adhesive label applied to the wall of the support.
    The friction pad advantageously comprises a wafer of generally circular or oval shape, it being understood that other geometric shapes are conceivable.
    The support wall is to be considered generally as any wall capable of receiving the friction pad and to be made accessible to users and consumers in a suitable location of a store, supermarket, service station or the like.
    The support is preferably located near an envelope storage or distribution site, but it can also be located at another suitable location, for example near a rack, a weigh scale, etc.
    Thus, in a preferred embodiment of the invention, the aforementioned wall is a front wall of an envelope storage case.
    In this case, the front wall of the housing, on which the friction pad is fixed, advantageously has a free edge which contributes to defining an outlet opening of the housing for extracting the envelopes one by one.
    In a preferred application of the invention, the housing is adapted to receive a continuous roll of envelopes.
    However, the housing can also be adapted to receive envelopes arranged in a stack, or in another way.
    In the following description, which is given by way of example only, reference is made to the accompanying drawings, in which: FIG. 1 is a perspective view of an apparatus for providing envelopes comprising a friction pad according to FIG. invention; FIG. 2 is a diagrammatic sectional view of the friction pad and of an envelope whose two films are being separated; - Figure 3 is a view similar to Figure 2 in a subsequent phase of separation of the two films of the envelope; and - Figure 4 is a top view of a friction pad associated with a self-adhesive label.
    Referring first to Figure 1 which shows a dispensing device 10 in the form of a parallelepiped-shaped general housing for the storage of envelopes.
    Here, the housing is made in a manner known per se from a metal sheet suitably folded and cut. It comprises a bottom wall 12 of generally rectangular shape, a rear wall 14 of generally rectangular shape connected perpendicular to the wall 12 and a front wall 16 or upper wall of substantially trapezoidal shape which is connected to the rear wall 14.
    This front wall 16 is substantially parallel to the bottom wall 12 and ends with a free edge 18 which contributes to defining an outlet opening of the housing for extracting the envelopes one by one. At the bottom wall 12 is further connected a front wall 20 having substantially the shape of a triangle which helps to define the outlet opening of the housing.
    Furthermore, the bottom wall 12 is connected to two side walls 22 arranged vis-à-vis. Between these two side walls is placed a roller 24 forming a reserve for a series of envelopes 26 arranged one after another.
    It can be seen in FIG. 1 that one of the envelopes 26, which has just been extracted from the housing, is open and that it comprises two opposing films 28 and 30 intended to be separated from each other to allow to form an access opening.
    The roll is thus composed of two continuous films closed on their two parallel lateral edges and closed transversely at regular intervals to constitute each time the bottom of an envelope. The fourth side of the envelope can be opened in a manner known per se.
    Both films are pre-cut at regular intervals to allow detaching an envelope by the end user.
    Thus, in Figure 1, the envelope 26 which has just been output is shown open. The films 28 and 30 of the envelope, which were initially tight and closely applied against each other, are now spaced apart to open the envelope.
    In the example, these are generally rectangular envelopes such as those used to form food bags, especially in the departments of fruit and vegetables stores, supermarkets and the like.
    As indicated above, one of the difficulties experienced by users is to open these envelopes, because the films tend to adhere against each other, including a phenomenon of static electricity.
    The device 10 here comprises a friction pad 32 formed of an adherent material having selected adherent properties and having a contact surface 34 against which one of the films, namely here the film 28, the envelope previously extracted from the storage case can be applied and rubbed by a user to facilitate the separation of the two films and, therefore, the opening of the envelope.
    The friction pad 32 is advantageously made of an adherent material, in particular an elastomeric material, endowed with elastic and adhesive properties.
    In a preferred embodiment of the invention, elastomeric materials such as polyurethanes are used.
    Advantageously used is a polyurethane obtained by cold mixing at least one polyol and a prepolymer based on diphenylmethane diisocyanate (MDI).
    A polyurethane of this type is sold by BASF under the name Elasturan® C 6963. The polyol or mixture of polyols used in the manufacture of commercial polyurethane is a commercial product sold by BASF under the name Pluracol® 380.
    The mixture of the polyol component and the isocyanate component is cold-processed and the resulting product can then be molded under controlled conditions to form molded products of various shapes.
    Elasturan® C 6963 is a flexible elastomeric material with interesting self-adhering properties. It finds particular application in shoe accessories and anti-slip pads.
    The friction pad of the invention is a wafer of chosen shape, for example of generally circular shape. This wafer may have a diameter of the order of three to five centimeters for a thickness of a few millimeters, typically of the order of 5 mm.
    This plate is removably attached to the wall 16, by any appropriate means, to allow the replacement of the friction pad as necessary. Here the wafer is fixed by gluing, in particular by self-adhesive or self-adhesive effect, but mechanical fixing means are also possible.
    Figure 2 shows schematically how the film 28 is applied and rubbed in contact with the surface 34 of the pad 32, which facilitates the separation and separation of the other film 30 as indicated by the arrow. For this, it is first necessary to apply, and therefore apply, the envelope (for example a food bag) on the friction pad before making the friction. It is also possible to slide the envelope against the friction pad, for example downward, maintaining pressure on the envelope to achieve the separation of the two films for the opening of the envelope.
    The nature of the phenomenon involved is not fully explained. It appears that this contact produces a phenomenon of adhesion between the material of the friction pad and that of the film which rubs on the pad, which facilitates the manual separation of the other film by a simple gesture of the user.
    Figure 3 thus shows how the film 30 slid with respect to the film 28, while moving away from it, under the action of the hand M (shown partially) of the user, as represented by the arrow. The movement of the user's hand is not limited to that shown schematically in Figure 3 and other types of displacements are possible as long as they allow a relative movement of the two films 28 and 30 which tends to slide and move apart. It seems that there is thus an adhesion effect of the film 28 on the surface 34 of the pad 32, which is similar to a "suction cup" effect, leading to easier separation of the films 28 and 30, the one compared to the other.
    FIG. 4 shows a top view of the friction pad 32, in the oval example, stuck on a self-adhesive label 36 intended to be applied to a wall of a support as described above.
    The contact surface 34 of the friction pad 32 advantageously carries a pictogram to illustrate the instructions for use of the device and an instruction, in the example "to put and rub".
    In the example, the label 36 is of generally rectangular shape and the friction pad 32 is fixed by self-adhesion near a small side of the label, which allows to release a zone 38 likely to include information eg user instructions for users.
    The friction pad 32 can be easily removed, for example to clean or wash, or to replace it with a new pad.
    The invention is capable of numerous variants, particularly as to the shape, dimensions and constitution of the friction pad and the manner in which it can be removably attached to a wall of a suitable support.
    Generally, this buffer will be fixed on a support wall near a storage site and / or envelope distribution.
    It is advantageous to arrange the friction pad on a wall of an envelope storage and dispensing case near the outlet of the dispenser as shown in Fig. 1. It is also possible to provide several friction pads on the support wall.
    The housing can be designed to receive roll or stack envelopes.
    Thus, as mentioned above, the device can also be used for the distribution of envelopes made in the form of gloves or mittens in service stations to allow users to use fuel without getting dirty hands.
    权利要求:
    Claims (11)
    [1]
    Apparatus for providing envelopes (26), in particular food bags, each formed of two thin plastic films (28, 30), the two films being initially tightly applied and intended to be discarded one of the other by a user for the opening of the envelope, characterized in that it comprises a support (10) provided with a friction pad (32) formed of an adherent material having selected adherent properties and having a contact surface (34) against which one (28) of the films of an envelope (26) can be applied and rubbed by a user to facilitate the separation of the two films (28, 30) and the opening of the envelope.
    [2]
    2. Device according to claim 1, characterized in that the adherent material is an elastomer.
    [3]
    3. Device according to one of claims 1 and 2, characterized in that the adherent material is a polyurethane.
    [4]
    4. Device according to claim 3, characterized in that the polyurethane is obtained by cold mixing of at least one polyol and a prepolymer based on diphenylmethane diisocyanate (MDI).
    [5]
    5. Device according to one of claims 1 to 4, characterized in that the friction pad (32) is removably attached to a wall (16) of the support (10).
    [6]
    6. Device according to claim 5, characterized in that the friction pad (32) is fixed on the wall (16) of the support (10).
    [7]
    7. Device according to claim 6, characterized in that the friction pad (32) is fixed by self-adhesion on a self-adhesive label (36) applied to the wall (16) of the support (10).
    [8]
    8. Device according to one of claims 5 to 7, characterized in that the friction pad (32) comprises a generally circular or oval shaped plate.
    [9]
    9. Device according to one of claims 5 to 8, characterized in that the wall (16) is a front wall of an envelope storage housing.
    [10]
    10. Device according to claim 9, characterized in that the front wall (16) of the housing has a free edge (18) which contributes to defining an outlet opening of the housing for the extraction of the envelopes (26), one by one .
    [11]
    11. Device according to one of claims 9 and 10, characterized in that the storage housing is adapted to receive a continuous roll (24) of envelopes (26).
    类似技术:
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    同族专利:
    公开号 | 公开日
    PL395533A1|2012-01-16|
    FR2962416B1|2013-05-24|
    PT105778A|2012-01-09|
    FR2962416A1|2012-01-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2005059952A|2003-08-19|2005-03-10|Sadao Ayukawa|Take-out bag opening mat|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR1002856|2010-07-07|
    FR1002856A|FR2962416B1|2010-07-07|2010-07-07|DEVICE FOR THE PROVISION OF ENVELOPES IN SYNTHETIC MATERIAL, ESPECIALLY FOOD BAGS.|
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